Point Forecast: 2 Miles WSW Portola Valley CA
 37.37N 122.25W (Elev. 1473 ft)
Last Update: 2:42 pm PDT Jul 13, 2025
Tabular Forecast
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Weather ElementsWeather/Precipitation
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Fog
Trans. Wind  
20ft Wind  

48-Hour Period Starting:       Back 2 Days  

Date07/1307/14
Hour (PDT)222300010203040506070809101112131415161718192021
Temperature (°F)615960595858585858595964677073757677767572676461
Dewpoint (°F)504848484747474747474852545556575757565656545250
Heat Index (°F)7576777775
Surface Wind (mph)332222222222222335565555
Wind DirSWSSWSSWSWSWSWSWSWSSWSSWSSWWSWWSWWSWWSWWSWSWSWSWSWSWWSWWSWWSW
Gust
Sky Cover (%)1716171922262827313225237222002223822
Precipitation Potential (%)000000000000000000011111
Relative Humidity (%)676765676767676667666766625856535250505056626465
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/15
Hour (PDT)222300010203040506070809101112131415161718192021
Temperature (°F)605958575756565555565760636668707172717067646160
Dewpoint (°F)484848474746464646474850525455565656565554525150
Heat Index (°F)
Surface Wind (mph)333355555566666677788877
Wind DirSWSWSWSWSWSWSWSSWSSWSSWSSSSSWSSWSSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)212020202727274343433434349996661212122929
Precipitation Potential (%)111111100000000000066666
Relative Humidity (%)666868686970717272727270686664615958586062656869
Rain------------------------------------------------
Thunder------------------------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
River Stage Summary24 Hour Precipitation Summary
NWS Office Map